CN102914263B - Multi-camera image splicing-based automatic workpiece detection device - Google Patents
Multi-camera image splicing-based automatic workpiece detection device Download PDFInfo
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Abstract
The invention discloses a multi-camera image splicing-based automatic workpiece detection device which is used for detecting whether the size of a workpiece is qualified or not and whether a threaded hole is provided with a thread or not. The multi-camera image splicing-based automatic workpiece detection device comprises a first camera, a second camera, a third camera, a fourth camera, a first reflector, a second reflector, a first light source, a second light source, a conveyor belt, a first photoelectric sensor, a second photoelectric sensor, a support frame, a light shielding plate, a collecting box, a guide rail, a cylinder, a motor, a storage and a processor, wherein the first camera and the second camera are used for respectively shooting two reference holes of a workpiece, the third camera is used for shooting a hole to be detected of the workpiece, the four camera is used for shooting a threaded hole of the workpiece, the processor is used for processing data shot by the first camera, the second camera and the third camera and comparing the data with a preset size specification standard, and comparing the data shot by the fourth camera with a preset threaded hole standard data to control the control device to correspondingly move a first box body, a second box body or third box body of the collecting box to the front of the conveyor belt according to a comparing result. The multi-camera image splicing-based automatic workpiece detection device is accurate in detection and high in efficiency.
Description
Technical field
The present invention relates to a kind of workpiece automatic checkout equipment based on polyphaser image mosaic.
Background technology
At present, in production line, the size of workpiece or the specification of threaded hole are detected and are generally distinguished or manual measurement by naked eyes, along with the precision of components and parts is more and more higher, also more and more higher to the requirement of the accuracy of detection of workpiece, error existing for different people detects is different, thus it is unified that the specification standards of workpiece are difficult to, thus is difficult to the quality ensureing workpiece.
Summary of the invention
For the deficiencies in the prior art, object of the present invention is intended to provide a kind of workpiece automatic checkout equipment based on polyphaser image mosaic, and it can detect the size of workpiece automatically or whether threaded hole specification meets standard.
For achieving the above object, the present invention adopts following technical scheme:
A kind of workpiece automatic checkout equipment based on polyphaser image mosaic, whether the size for detecting workpiece is qualified, and it comprises first camera, second camera, third camera, the first reflective mirror, the second reflective mirror, light source, travelling belt, motor, photoelectric sensor, bracing frame, shadow shield, rewinding case, drive unit and processor; Wherein this workpiece comprises two datum holes and parts to be tested, and this rewinding case comprises the first casing and the second casing;
Travelling belt and shadow shield are all installed on bracing frame, first camera, second camera, third camera, first reflective mirror, second reflective mirror and light source are all installed on shadow shield, first camera and the same height of second camera distance travelling belt, and the camera lens vertical conveyors of first camera and second camera, before first reflective mirror and the second reflective mirror lay respectively at the camera lens of first camera and second camera, and relatively camera lens inclination certain angle enters the camera lens of first camera and second camera to make two datum holes of workpiece respectively through the light of mirror reflection, third camera is positioned at the top of light source, and the camera lens parallel strip line of third camera, this third camera is for taking the parts to be tested of workpiece, light source is positioned at below first camera and second camera, photoelectric sensor is installed on bracing frame, workpiece is detected along with when travelling belt moves to below light source to make workpiece, rewinding case is positioned at one end of travelling belt moving direction, processor is by motor connecting conveyor belt, the coordinate system of the data determination two dimensional surface of processor captured by first camera and second camera, and the data captured by third camera determine parts to be tested XY offset distance in a coordinate system, again XY offset distance and the dimensions standard being pre-stored within processor are contrasted, with according to before comparing result accessory drive correspondingly mobile first casing or the second casing to travelling belt to make workpiece fall in corresponding casing.
This drive unit comprises guide rail and cylinder, and rewinding case is installed on guide rail, and cylinder is connected in rewinding case.
First reflective mirror camera lens all relative to the second reflective mirror tilts 45 degree.
Travelling belt is interval with some fixtures along its length, and each fixture fixes a workpiece.
For achieving the above object, the present invention also adopts following technical scheme:
A kind of workpiece automatic checkout equipment based on polyphaser image mosaic, whether whether qualified and its threaded hole of the size for detecting workpiece is processed with screw thread, should comprise first camera, second camera, third camera, the 4th camera, the first reflective mirror, the second reflective mirror, the first light source, secondary light source, travelling belt, the first photoelectric sensor, the second photoelectric sensor, bracing frame, shadow shield, rewinding case, drive unit, motor, storer and processor based on workpiece automatic checkout equipment of polyphaser image mosaic; Wherein work pieces process has threaded hole, two datum holes and parts to be tested, and this rewinding case comprises the first casing, the second casing and the 3rd casing;
Travelling belt and shadow shield are all installed on bracing frame, first camera, second camera, third camera, first reflective mirror, second reflective mirror, first light source is all installed on shadow shield, first camera and the same height of second camera distance travelling belt, and the camera lens vertical conveyors of first camera and second camera, before first reflective mirror and the second reflective mirror lay respectively at the camera lens of first camera and second camera, and relatively the camera lens inclination certain angle of first camera and second camera enters the camera lens of first camera and second camera to make two datum holes of workpiece respectively through the light of mirror reflection, third camera is positioned at the top of the first light source, and the camera lens of third camera is parallel to travelling belt, this third camera is for taking the parts to be tested of workpiece, first light source is positioned at the below of first camera and second camera, first photoelectric sensor is installed on bracing frame to make workpiece detect workpiece along with when travelling belt moves to below the first light source, 4th camera and secondary light source are all installed on shadow shield, secondary light source is positioned at immediately below the 4th camera, the position of corresponding 4th camera of the second photoelectric sensor is installed on bracing frame, and processor controls motor and drives travelling belt, and rewinding case is positioned at one end of travelling belt moving direction, the coordinate system of the data determination two dimensional surface of processor captured by first camera and second camera, and the data captured by third camera determine parts to be tested XY offset distance in a coordinate system, again XY offset distance and the dimensions standard being pre-stored within processor are contrasted, and the data captured by the 4th camera and the threaded hole normal data preset are contrasted, with according to before comparing result accessory drive correspondingly mobile first casing, the second casing or the 3rd casing to travelling belt to make workpiece fall in corresponding casing.
This drive unit comprises guide rail and cylinder, and rewinding case is installed on guide rail, and cylinder is connected with rewinding case.
First reflective mirror camera lens all relative to the second reflective mirror tilts 45 degree.
Beneficial effect of the present invention is as follows:
Whether the above-mentioned workpiece automatic checkout equipment based on polyphaser image mosaic can detect the whether qualified or threaded hole of the size of workpiece automatically has screw thread, and automatically the workpiece of correspondence is put into corresponding casing according to testing result, can automatic screening, detect precisely, and efficiency is high, effective raising workpiece quality, and reduce manpower, thus effectively reduce production cost.Adopt two camera shooting datum holes, the part of detecting of a camera shooting test piece, when workpiece size becomes large, measuring accuracy is constant, camera resolution can without the need to increasing simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the better embodiment of the workpiece automatic checkout equipment that the present invention is based on polyphaser image mosaic.
Fig. 2 is the structural representation of the vertical view of the workpiece automatic checkout equipment based on polyphaser image mosaic of Fig. 1.
Fig. 3 is the schematic diagram of the relative position of the camera of the workpiece automatic checkout equipment based on polyphaser image mosaic of Fig. 1, reflective mirror and light source.
Fig. 4 is the schematic diagram at another visual angle of Fig. 3.
Fig. 5 is the electrical principle block diagram of the workpiece automatic checkout equipment based on polyphaser image mosaic of Fig. 1.
Fig. 6 is the schematic diagram that the workpiece automatic checkout equipment based on polyphaser image mosaic of Fig. 1 carries out the workpiece detected.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described further:
Refer to Fig. 1 to 5, the present invention relates to a kind of workpiece automatic checkout equipment based on polyphaser image mosaic, whether whether qualified and its threaded hole of the size for detecting workpiece 10 is processed with screw thread, and its better embodiment comprises camera 21 to 24, reflective mirror 92 and 93, light source 41 and 42, travelling belt 50, photoelectric sensor 12 and 15, bracing frame 60, shadow shield 30, rewinding case 70, guide rail 82, cylinder 81, motor 85, storer 96 and processor 17.
Refer to Fig. 6, in the present embodiment, this workpiece 10 is offered two threaded holes 11, prospect hole to be measured 12, datum hole 18 and 19.In other embodiments, this prospect hole 12 to be measured can be other positions of workpiece 10.
Travelling belt 50 is interval with along its length some fixtures 27, each fixture 27 fixes a workpiece 10.Travelling belt 50 and shadow shield 30 are all installed on bracing frame 60, camera 21 to 23, reflective mirror 92 and 93, light source 41 are all installed in the left part of shadow shield 30, the height that camera 21 and 23 distance travelling belt 50 is same, and the camera lens vertical conveyors 50 of camera 21 and 23, before reflective mirror 92 and 93 lays respectively at the camera lens of camera 21 and 23, and the camera lens inclination certain angle of relative camera 21 and 23 is as 45 degree.Camera 21 is positioned at above camera light source 41, and the camera lens parallel strip line 50 of camera 21, light source 41 is positioned at immediately below camera 21 and 23.Photoelectric sensor 12 is installed on bracing frame 60, and the position of photoelectric sensor 12 is can detect workpiece 10 and to move to immediately below light source 41 and camera 21 to 23 can photograph the prospect hole to be measured 12 of workpiece 10 respectively, datum hole 19 and 18 is as the criterion.Camera 24 and light source 42 are all installed in the right part of shadow shield 30, and light source 42 is positioned at immediately below camera 24.Photoelectric sensor 15 is installed on bracing frame, and the position of photoelectric sensor 15 is can detect workpiece 10 and to move to immediately below light source 42 and two threaded holes 11 that camera 24 can photograph workpiece 10 are as the criterion.
Processor 17 controls motor 85 and drives travelling belt 50, and guide rail 82 is positioned at one end of travelling belt 50, and rewinding case 70 is installed on guide rail 82, and cylinder 81 to be located at below rewinding case 70 and to be connected with rewinding case 70.This rewinding case 70 comprises casing 71 to 73, wherein casing 71 is for receiving inaccuracy of dimensions and threaded hole does not have threaded workpiece or inaccuracy of dimensions and the threaded workpiece of threaded hole, casing 72 is for receiving size qualification and threaded hole does not have threaded workpiece, and casing 73 is for receiving size qualification and the threaded workpiece of threaded hole.In other embodiments, the drive unit that the drive unit that this guide rail 82 and cylinder 81 can be replaced other forms as travelling belt and motor.Camera 21 to 24, photoelectric sensor 12 and 15, cylinder 81, storer 96 and motor 85 are all electrically connected process device 17.
Below the principle of work of better embodiment of the present invention is described:
Being fixed on workpiece 10 on fixture 27 along with travelling belt 50 moves toward the direction near rewinding case 70, until photoelectric sensor 12 detects workpiece 10, this photoelectric sensor 12 sends an induced signal to processor 17, travelling belt 50 stop motion is controlled by motor 85 to make processor 17, now, datum hole 19 and 18 on workpiece 10 just aims at reflective mirror 92 and 93 respectively, prospect hole to be measured 12 on workpiece just alignment cameras 21, camera 22 and 23 takes the datum hole 19 and 18 of workpiece 10 respectively by reflective mirror 92 and 93, prospect hole 12 to be measured taken by camera 21, and captured related data is sent to processor 17, the coordinate system of the data determination two dimensional surface of processor 17 captured by camera 22 and 23, and the data captured by camera 21 determine the XY offset distance of prospect hole 12 to be measured on coordinate system (XY offset distance refers to that prospect hole 12 to be measured is in coordinate system distance X-axis and the distance of Y-axis), again XY offset distance and the dimensions standard being stored in processor 17 in advance are in advance contrasted, and then the size results after contrast is stored in storer 96, and it is mobile to control travelling belt 50 continuation, until photoelectric sensor 15 detects workpiece 10, processor 17 controls travelling belt 50 stop motion, now, two threaded holes 11 on workpiece 10 are just in immediately below camera 24, two threaded holes 11 taken by camera 24, and processor 17 is entered in captured data transmission, received data and the threaded hole normal data preset contrast by processor 17, to draw screw thread result, controlling travelling belt 50 again continues mobile, and the size results read in storer 96, to drive rewinding case 70 to move corresponding displacement according to size results and screw thread output control cylinder 21.If size results is do not meet default dimensions standard, and screw thread result is not for having screw thread, then testing result is this workpiece 10 is defective products, processor 17 control cylinder 81 moves, move along guide rail 82 to make rewinding case 70, until travelling belt 50 aimed at by casing 71, fall in casing 71 to make corresponding workpiece 10; If size results is do not meet default dimensions standard, and screw thread result is for there being screw thread, then processor 17 makes casing 71 aim at travelling belt 50 by control cylinder 81, to receive corresponding workpiece 10; If size results is meet default dimensions standard, and screw thread result is not for having screw thread, then processor 17 makes casing 72 aim at travelling belt 50 by control cylinder 81, to receive corresponding workpiece 10; If size results be meet default dimensions standard and screw thread result for there being screw thread, then processor 17 makes casing 73 aim at travelling belt 50 by control cylinder 81, to receive corresponding workpiece 10.So, whether size and the threaded hole that automatically can detect workpiece have screw thread, and automatically the workpiece 10 of correspondence is put into corresponding casing according to testing result, get final product automatic screening, detect precisely, and efficiency is high, effectively can improve workpiece quality, and minimizing manpower, thus effectively reduce production cost.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the claims in the present invention.
Claims (7)
1. the workpiece automatic checkout equipment based on polyphaser image mosaic, whether the size for detecting workpiece is qualified, it is characterized in that: it comprises first camera, second camera, third camera, the first reflective mirror, the second reflective mirror, light source, travelling belt, motor, photoelectric sensor, bracing frame, shadow shield, rewinding case, drive unit and processor; Wherein this workpiece comprises two datum holes and parts to be tested, and this rewinding case comprises the first casing and the second casing;
Travelling belt and shadow shield are all installed on bracing frame, first camera, second camera, third camera, first reflective mirror, second reflective mirror and light source are all installed on shadow shield, first camera and the same height of second camera distance travelling belt, and the camera lens vertical conveyors of first camera and second camera, before first reflective mirror and the second reflective mirror lay respectively at the camera lens of first camera and second camera, and relatively camera lens inclination certain angle enters the camera lens of first camera and second camera to make two datum holes of workpiece respectively through the light of mirror reflection, third camera is positioned at above light source, and the camera lens parallel strip line of third camera, this third camera is for taking the parts to be tested of workpiece, light source is positioned at below first camera and second camera, photoelectric sensor is installed on bracing frame, workpiece is detected along with when travelling belt moves to below light source to make workpiece, rewinding case is positioned at one end of travelling belt moving direction, processor controls motor and drives travelling belt, the coordinate system of the data determination two dimensional surface of processor captured by first camera and second camera, and the data captured by third camera determine parts to be tested XY offset distance in a coordinate system, again XY offset distance and the dimensions standard being pre-stored within processor are contrasted, with according to before comparing result accessory drive correspondingly mobile first casing or the second casing to travelling belt to make workpiece fall in corresponding casing.
2., as claimed in claim 1 based on the workpiece automatic checkout equipment of polyphaser image mosaic, it is characterized in that: this drive unit comprises guide rail and cylinder, rewinding case is installed on guide rail, and cylinder is connected with rewinding case.
3. as claimed in claim 1 based on the workpiece automatic checkout equipment of polyphaser image mosaic, it is characterized in that: the first reflective mirror camera lens all relative to the second reflective mirror tilts 45 degree.
4., as claimed in claim 1 based on the workpiece automatic checkout equipment of polyphaser image mosaic, it is characterized in that: travelling belt is interval with some fixtures along its length, each fixture fixes a workpiece.
5. the workpiece automatic checkout equipment based on polyphaser image mosaic, whether whether qualified and its threaded hole of the size for detecting workpiece is processed with screw thread, it is characterized in that: should comprise first camera, second camera, third camera, the 4th camera, the first reflective mirror, the second reflective mirror, the first light source, secondary light source, travelling belt, the first photoelectric sensor, the second photoelectric sensor, bracing frame, shadow shield, rewinding case, drive unit, motor, storer and processor based on workpiece automatic checkout equipment of polyphaser image mosaic; Wherein workpiece comprises processing threaded threaded hole, two datum holes and parts to be tested, and this rewinding case comprises the first casing, the second casing and the 3rd casing;
Travelling belt and shadow shield are all installed on bracing frame, first camera, second camera, third camera, first reflective mirror, second reflective mirror, first light source is all installed on shadow shield, first camera and the same height of second camera distance travelling belt, and the camera lens vertical conveyors of first camera and second camera, before first reflective mirror and the second reflective mirror lay respectively at the camera lens of first camera and second camera, and relatively the camera lens inclination certain angle of first camera and second camera enters the camera lens of first camera and second camera to make two datum holes of workpiece respectively through the light of mirror reflection, third camera is positioned at the top of the first light source, and the camera lens of third camera is parallel to travelling belt, this third camera is for taking the parts to be tested of workpiece, first light source is positioned at the below of first camera and second camera, first photoelectric sensor is installed on bracing frame to make workpiece detect workpiece along with when travelling belt moves to below the first light source, 4th camera and secondary light source are all installed on shadow shield, secondary light source is positioned at immediately below the 4th camera, the position of corresponding 4th camera of the second photoelectric sensor is installed on bracing frame, and processor is by motor connecting conveyor belt, and rewinding case is positioned at one end of travelling belt moving direction, the coordinate system of the data determination two dimensional surface of processor captured by first camera and second camera, and the data captured by third camera determine parts to be tested XY offset distance in a coordinate system, again XY offset distance and the dimensions standard being pre-stored within processor are contrasted, and the data captured by the 4th camera and the threaded hole normal data preset are contrasted, with according to before comparing result accessory drive correspondingly mobile first casing, the second casing or the 3rd casing to travelling belt to make workpiece fall in corresponding casing.
6., as claimed in claim 5 based on the workpiece automatic checkout equipment of polyphaser image mosaic, it is characterized in that: this drive unit comprises guide rail and cylinder, rewinding case is installed on guide rail, and cylinder is connected with rewinding case.
7. as claimed in claim 5 based on the workpiece automatic checkout equipment of polyphaser image mosaic, it is characterized in that: the first reflective mirror camera lens all relative to the second reflective mirror tilts 45 degree.
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| CN201210397561.0A CN102914263B (en) | 2012-10-17 | 2012-10-17 | Multi-camera image splicing-based automatic workpiece detection device |
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| CN201210397561.0A CN102914263B (en) | 2012-10-17 | 2012-10-17 | Multi-camera image splicing-based automatic workpiece detection device |
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| CN102914263B true CN102914263B (en) | 2015-01-21 |
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